Lewis and Clark, a legacy of science.

Shows facsimile of Lewis and Clark exploration map and contemporary physical map of approximately the same geographic coverage. Relief shown by hachures on facsimile map. Relief shown by shading and gradient tints on contemporary physical map. "The original Lewis and Clark map has been digitally enhanced and prepared by the U.S. Geological Survey. Reproduced from the original held in the Library of Congress, Geography and Map Division." Facsimile map originally published: Philadelphia : Bradford and Inskeep, 1814. Prime meridians on facsimile map: Washington, D.C. and London. At lower right corner: Rebecca Garcia, Bruce Boman & John Kosovich. Includes text and ill. (chiefly col.). Available also through the Library of Congress Web site as a raster image.

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